invincible

1. ADJ If you describe an army or sports team as invincible, you believe that they cannot be defeated. 不可戰勝的

You couldn't help feeling the military's fire power was invincible. 你不禁會感到這支軍隊的火力是無可匹敵的。

2. ADJ If someone has an invincible belief or attitude, it cannot be changed. 無法改變的

He also had an invincible faith in the medicinal virtues of garlic. 他對大蒜的葯用功傚深信不疑。